Forgotten Woods used part of the discussion as outro on Race of Cain. Wasn't Glen Benton also chatting a lot with this nutso christian?
And then there's Necrobutcher getting exorcised by Mr. Larson:
http://www.youtube.com/watch?v=nJk9Ul1K_V0

indeed he did on a couple few occasions I believe... I have no idea if it was really him, but they also used clips saying it was Trey from Morbid Angel calling, and Bob exercised the demon Asmodeus out of him over the phone/became pals. either a prank (likely) or total bullshit all together. the guys from Archeron were definitely in studio once before as well

Incriminated- Hypocricide
Ignivomous- Contragenesis
Shub Niggurath- The Kinglike Celebration
Disma- The Vault Of Membros_________________May all the world forget you ever stood,and the whole world regret you did no good.